Grate for furnaces



(N0 M8del.) 2 Sheets-Sheet 1. F, P. FULLER.

GRAT'E FOR FURNACES, .&c'.

No. 565,888. Patented Aug. 18, 1898;

2 Sheets-Sheet 2.

(No Model.) FLP. FULLER.

GRATE FOR FURNACES, &c.

Patented Aug. 18, 1896.

U ITE STATES FRANK P. FULLER, OF

FATENT OFFICE.

MOUNT VERNON, OHIO.

GRATE FOR FURNACES, 800.

SPECIFICATION forming part of Letters Patent No. 565,888, dated August18, 1896.

Serial No. 558,646. (No model.)

To all whont it ntay concern.-

Be it known that I, FRANK P. FULLER, a citizen of the United States,residing at Mount Vernon, in the county of Knox and State of Ohio, haveinvented certain new and useful Improvements in Grates for Furnaces andthe Like, of which the following is a full, clear, and exactspecification.

My invention relates to a new and useful improvement in grates forfurnaces and the like, and has for its object to provide such a devicethat will facilitate the removal of ashes and cinders from the firewithout interfering with the dumping of said fire or the remainsthereof.

With these ends in view the invention consists in the details ofconstruction and combination of elements hereinafter set forth, and thenspecifically designated by the claims.

In order that those skilled in the art to which my invention appertainsmay understand how to make and use the same, I will describe itsconstruction and operation in detail, referring by number to theaccompanying drawings, forming a part of this specification, and inwhich- Figure 1 is a plan view of a grate embodying my improvements;Fig. 2, a bottom view thereof; Fig. 3, a section at the line a: as ofFig. 1; Fig. 4, a section at the line y y; Fig.

'5, a detail perspective of the rocking bar by which the several partsof the grate are supported.

Referring to the figures, 1 represents the base of a furnace, whichincloses the ash-pit v2, and is adapted to receive and support a furnaceof the desired construction, the lower edge of which fits within theannular flange 3 to form the fire-box. Cast or otherwise formed upon theinner side of the walls of the base are the lugs 4, having suitablebearings formed therein to receive the supporting-bar 5, which isadapted to rock at right angles to its axis for the purpose of dumpingthe entire grate at one operation. Formed with the bar 5 are twoextensions 6, in which are curved slots 7, the purpose of which will hehereinafter set forth.

8 is a swiveled bar fulcrumed upon the bar 5 by the pin 9 and adapted toturn in a hole 10, formed in said bar. 11 is a shaker-bar, formed withthe bar 8, and extending from the center thereof to the front of theash-pit, and

terminating in a wrench-hold 12, by which the grate may be oscillatedupon the pin 9 for the purpose of removing ashes, as will be hereinafterset forth. This shaker-bar is held in its normal elevated position bythe rod 13, supported in the lugs 14, formed upon the sides of theash-pit.

15 and 16 are two semicircular sections of which the grate proper iscomposed, and these sections are provided upon their under sides withdepending lugs 17, having suitable bearings formed therein adapted tofit upon the bar 8, so that the sections may oscillate in the directionof the arrow in Fig. 3, independent of any other movement of the grate,for the purpose of dumping material upon the said grate into halves, aswill be readily understood.

18 are two levers pivoted at 19 upon either side of the lug 20, whichprojects from the bar 11, and 21 are connecting-rods pivoted at 22 tothe grate-sections and at 23 to these levers, so that any motion of saidlevers will be imparted to the grate-sections.

24 are operating-rods, pivoted at 25 to the levers 18, and extendingthrough the front casing of the ash-pit and terminating in handles 26,and by these operating-bars the gratesections may be dumped independentof each other, or of any other movement of the grate, as beforespecified.

The rear end of the levers 18 are preferably weighted, so as tooverbalance the grate-sections and hold them in their normal closedposition.

27 and 28 are grate-bars, formed by a number of arms 29, projecting froma central bar, and these bars are pivoted at 30, within thegrate-sections 15 and 16, respectively, and depending from these barsare the rods 31, which project into the slots 7, formed in theextensions 6 of the supporting-bar, so that upon the grate beingoscillated back and forth, as indicated by the arrow in Fig. 1, the rods31 will travel in the slots 7, which are of such contour as to impart tosaid rods a to-and-fro movement crosswise of the axis of the gratebars15 and 16, which will cause said bars to rock upon their pivots 30, thusthoroughly agitating the coals upon the grate, and as this agitationtakes place during the oscillation of the grate proper, it follows, thatany refuse, such as ashes, will be quickly dislodged from the grate andcaused to fall within the ash-pit.

From this description it will be seen thata grate made in conformity tomy improvement may be dumped as a whole by the removal of the cross-rod13, upon which the shakerbar 11 rests, or that one-half of the grate maybe dumped by the proper manipulation of one of the rods 26, as beforedescribed, and also that the fire may be thoroughly agitated andrelieved of its refuse by simply oscillating the shaker-bar. Thesecombinations of movements are very advantageous in that they permit theproper regulation and manipulation of a fire within a furnace, with butlittle labor or skill upon the part of the attendant.

Having thus fully described my invention, what I claim as new anduseful, is-

1. In a grate, the combination of a supporting-bar pivoted within theash-pit and carryin g extensions having slots 7, formed therein,swinging bar 8, fulcrumed to the first-named bar, shakerbar 11, formedwith said swinging bar, levers 18, pivoted to said shakerbar,grate-sections 15, and 16, pivoted. upon the bar 8, rods 21, connectingsaid grate-sections with the levers 18, operating-rods 24,

adapted to impart motion to said levers for tipping said grate-sections,grate-bars 27, and 28, pivoted within said grate-sections, rods 31,depending from said grate-bars, and projecting within the slots 7,substantially as and for the purposes set forth.

2. In combination, a supporting-bar pivoted within the ash-pit of astove or furnace, diverging extremities 6, integral with the bar andhavin g longitudinal slots, a bar 8, having a pin turning in theaperture of the supporting-bar, a shaker-bar 11, formed with thetensions 6, levers 18, pivoted to the lugs of the shaker-bar 11, andconnecting-rods leading from the levers to the grate-sectionsandoperating-rods connected with the levers, as

I and for the purpose described.

In testimony whereof I have hereunto affiXed my signature in thepresence of two sub scribing Witn esses.

FRANK P; FULLER. WVi-tnesscs:

S. S. WiLLIAMsoN, WM. H. THOMPSON.

